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George Bush Intcntl

$380+ Cheap flights from Portugal to George Bush Intcntl (IAH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAH
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Portugal to George Bush Intcntl

Cheapest flights from Portugal to George Bush Intcntl
Explore the most affordable flight options available from Portugal to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This British Airways deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:40 amLIS - IAH
2 stops19h 10mBritish Airways
Fri 1/93:50 pmIAH - LIS
1 stop20h 05mBritish Airways
Deal found 12/16$923
This British Airways deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:45 pmLIS - IAH
2 stops17h 30mMultiple Airlines
Fri 1/93:50 pmIAH - LIS
1 stop14h 15mMultiple Airlines
Deal found 12/17$969
This Iberia deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:45 pmLIS - IAH
2 stops24h 55mIberia
Thu 1/812:39 pmIAH - LIS
2 stops17h 11mIberia
Deal found 12/17$995
This American Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:05 amLIS - IAH
2 stops19h 53mAmerican Airlines
Fri 1/911:18 amIAH - LIS
2 stops15h 32mAmerican Airlines
Deal found 12/18$999
This Finnair deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:05 amLIS - IAH
1 stop17h 51mMultiple Airlines
Thu 1/82:02 pmIAH - LIS
1 stop13h 03mMultiple Airlines
Deal found 12/18$1,017
This Iberia deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:45 pmLIS - IAH
2 stops24h 55mIberia
Fri 1/91:57 pmIAH - LIS
2 stops15h 53mIberia
Deal found 12/17$1,048

Find flight deals from Portugal to George Bush Intcntl

Keep the following information in mind while searching for Portugal to George Bush Intcntl flight deals. Data was last updated December 18, 2025.

Round-trip from

$668
(Mytrip)

One-way from

$380
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$929
From Portugal to Houston George Bush Intcntl
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One-way flight from Portugal to Houston George Bush Intcntl
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Highest demand for flights based on searches. 13% potential increase in price ($143 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to George Bush Intcntl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Portugal to Houston George Bush Intcntl Airport that are best for you.

Fly from

Portugal

Fly to

George Bush Intcntl

Route

Depart

Return

Price

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/22

7:00 am-11:34 pm

2 stops22h 34m

Houston George Bush Intcntl

Fri 2/6

11:38 am-3:05 pm

3 stops21h 27m

$711

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 1/31

7:00 am-8:00 pm

1 stop19h 00m

Houston George Bush Intcntl

Sat 2/28

3:50 pm-2:50 pm

1 stop17h 00m

$751

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/29

7:00 am-8:00 pm

1 stop19h 00m

Houston George Bush Intcntl

Sat 2/28

3:50 pm-2:50 pm

1 stop17h 00m

$751

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 2/2

7:05 am-8:00 pm

1 stop18h 55m

Houston George Bush Intcntl

Thu 2/26

3:50 pm-12:10 pm

1 stop14h 20m

$751

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 2/1

7:05 am-8:00 pm

1 stop18h 55m

Houston George Bush Intcntl

Sat 2/28

3:50 pm-2:50 pm

1 stop17h 00m

$751

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 1/30

10:15 am-6:46 pm

1 stop14h 31m

Houston George Bush Intcntl

Thu 2/26

1:25 pm-8:10 am

1 stop12h 45m

$758

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 1/14

10:15 am-6:46 pm

1 stop14h 31m

Houston George Bush Intcntl

Tue 1/27

12:29 pm-8:10 am

1 stop13h 41m

$758

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 2/4

2:00 pm-10:46 pm

1 stop14h 46m

Houston George Bush Intcntl

Wed 2/25

11:55 am-8:10 am

1 stop14h 15m

$758

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 2/3

10:15 am-6:46 pm

1 stop14h 31m

Houston George Bush Intcntl

Fri 2/27

1:25 pm-8:10 am

1 stop12h 45m

$758

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 2/2

10:15 am-6:46 pm

1 stop14h 31m

Houston George Bush Intcntl

Wed 2/25

1:25 pm-8:10 am

1 stop12h 45m

$758

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 23 results
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Best time to book a flight from Portugal to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Portugal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Houston George Bush Intcntl Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Portugal to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portugal to Houston George Bush Intcntl Airport?

    British Airways can get you from Portugal to Houston George Bush Intcntl Airport in just under 19h. Your travel time can differ by up to . Portugal and Houston George Bush Intcntl Airport are separated by a distance of 4767 mi.

  • Can I find deals for flights from Portugal to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Portugal to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to George Bush Intcntl.

  • Can I find deals for business class flights from Portugal to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Portugal to George Bush Intcntl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Spring
Montgomery
Katy
The Woodlands
Tomball
Jersey Village
Humble
Conroe
Cypress

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